The efficient optical cycles for ultracold molecule production: the realistic modelling based on highly accurate spectroscopy and ab initio calculationsтезисы доклада
Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:The laser production and manipulation of the ultracold molecular ensembles would be
greatly facilitated by accurate knowledge of the structure, dynamic, magnetic and
electric properties of the electronic states involved (see, e.g., ref. [1]). In spite of the
recent progress in the systematic spectroscopic investigation of the promising
diatomic species such as alkali metal dimers [2] the reduction of the raw experimental
data available for excited electronic states to precise structure (potentials and
interaction matrix elements) and radiative (transition dipole moments and Einstein
coefficients) parameters is very challenging and still ambiguous procedure.
We present here a review of physical models and numerical recipes currently
developed for the comprehensive deperturbation treatment of fully mixed [3] and
regularly perturbed [4] alkali diatomic states in a wide range of excitation energy and
internuclear distance. The crucial role of highly accurate ab initio calculations of the
spin-orbit and angular coupling matrix elements [5] in the deperturbation analysis is
demonstrated. The homogeneous perturbation effect on nodal structure of the multicomponents
wave functions and relevant overlap integrals are discussed [6]. The
interpolation and extrapolation properties of the resulting coupled-channel nonadiabatic
models are discussed with respect to accuracy required for the adequate
reproduction of overall experimental data sets and to reliable predictions of the
efficient optical pathways for ultracold molecule production [7].
This research was supported by the RFBR grant No. 13-03-00446.
[1] K.-K. Ni et al, Science 322, 231 (2008); M. Debatin et al, PCCP 13, 18926
(2011).
[2] E.Tiemann and H.Knöckel AIP Conf. Proc. 1545, 79 (2013);
[3] J.Bai et al, Phys. Rev. A 83, 032514 (2011); A. Kruzins et al, J. Chem. Phys. 139,
244301 (2013); A.N. Drozdova et al, Phys. Rev. A 88, 022504 (2013).
[4] I.Klincare et al, Phys. Rev. A 85, 062520 (2012); V. Zuters et al, Phys. Rev. A 87,
022504 (2013).
[5] J.T.Kim, Y.Lee and A.V. Stolyarov, J.Mol.Spectroscopy 256, 57 (2009).
[6] V.I.Pupyshev et al, PCCP 12, 4809 (2010).
[7] P. Zabawa et al, Phys. Rev. A 82, 040501(R) (2010).